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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
01477800 SHELLPOT CREEK AT WILMINGTON, DE
LOCATION - Lat 39°45'39.5", long 75°31'07.3" referenced to North American Datum of 1983, New Castle County, DE, Hydrologic Unit 02040205, on right bank 100 ft east of intersection of 44th and Pine Streets in Clifton Park, 700 ft downstream from bridge on North Market Street in Wilmington, 0.2 mi downstream from Matson Run, and 2.3 mi upstream from mouth.
DRAINAGE AREA - 7.46 mi².
REVISIONS HISTORY - WSP 1382: 1948(m). https://waterdata.usgs.gov/nwis/dv/?site_no=01477800: 2011-2014.
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1945 to current year.
GAGE -
Water-stage recorder, concrete control and crest stage gage. Datum of gage is 14.04 ft above North American Vertical Datum of 1988 and 15.16 ft above National Geodetic Vertical Datum of 1929.
REMARKS - Water Years 2018-2023: Records good, except those above 1,600 ft³/s and those for estimated discharges, which are poor.
Water Year 2017: Records fair, except those for estimated discharges, which are poor.
Water Years 2015-2016: Records poor, including those for estimated discharges.
Water Years 2011-2014: Records fair, except those above 1,600 ft³/s and those for estimated discharges, which are poor.
Water Year 2010 and prior years’ accuracy statements can be found in Annual Water Data Reports.
Occasional regulation at low flow from unknown source upstream from station. U.S. Geological Survey satellite data-collection platform at station.
Occasional regulation at low flow from unknown source upstream from station. U.S. Geological Survey satellite data-collection platform at station.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage known since at least 1940, that of July 5, 1989. Flood of Aug. 1, 1945, reached a stage of about 8.5 ft, from floodmarks.
